【題目】Let’s _____ at a green light. ( )

【題目】She must ______ quietly in the library. ( )

【題目】You send a letter ________. ( )

【題目】Wangfujing Street ________ many shops. ( )

【題目】It’s red now. Please ___________.( )

【題目】Slow down and stop _____a yellow light.( )

【題目】—What are you doing? ( )

【題目】—Where do you put the address? ( )

【題目】Sarah must _____attention to the traffic lights.( )

【題目】根據(jù)句意，用所給詞進行適當(dāng)形式填空。